Hoist



Dec. 7 1926.

S. BERGLING ET AL HOIST Filed Sept. 2l, 1925 S Sheets-Sheet 1 Dc. 7,192e.

1,609,600 s. BERGLING ErL HOIST Filed sept. 21, 1925 5 sheets-sheet 2Jg'dfZ iride/450m, MM l Dec. 7, 1926. 1,609,600

S. BEPGLING ET AL HOIST Filed Sept. 21l 1925 5 Sheets-Sheet 3 Dec.7,1926. 1,609,600

S. BERGLING ET AL l HOIST Filed Sept. 2l, 1925 5 Sheets-Sheet 4 Dec. 7

S. BERGLING ET AL HOIST Filed Sept. 21, 1925 5 Sheets-Sheet 5 W .....quv 1.114

Patented Dec. 7, V1926.

Unirse s'rAiss sWnN BERGLING Ann KARL nivnnnson, or onronoo, inninors,Assieivons 'ro Rr.-

nirinnn Hois'r oo ivrranr; 'or CHICAGO, Immers, A eonronnrion;

noIs'r.

viippiicrcion mea september 2i, i325. seriali irq, 573,513,

Our invention relatesI to improvements., iny hoists especially` adaptedfor use 1n lziuild-i` ingoperatiOns or theflile, the 013.160@ Of thevinvention beingto providesiimple, durable andi eiiicient apparatus ofthis character, the present: invention being an improvement over thatdisclosed in Qur pending applicationffiled .lune 15, 1925 Serial No;V37,049.

"Other objects will appear hereinafter:

The inventioi'i consists in the C.213.01@lll@Y1,SeA and arrangementsoiiparts hercillifteflf d scribed and claimed.

The inventiony will be best understood by reference to the` accompanying'drawings forming a part of this specification, and in which, "i

Fig. 1 is, side View of a portion or a, hoisting apparatus embodying theinvention 'Y' Y Y Fig. 2 is a tropA plan view of the same,

Fig. 3 is a horizontal section of the; same, Fig. 4 is a'verticalltransverse section of therme.. a

' Fig. 5 isa vertical longitudinal section Of the same, andV Y FigpG isa detail View illustratingbrake actuatingmechanisin employedin theConstruction.

' The preferred form of construction as illustrated in tho drawingscomprises a suit able'frameA 10 having ha'. gear casingv 11 mountedYthereon. Arranged'in` the gear casing :ll are two axially aligningWinding shafts 12A and 13, the s haft-12 carrying a Winding drum 14 andthe'shalft' 13 carrying Winding drum'l`5. As Will be noted the tivoshafts 12 and 13 are mounted in suitable bearings formed in the Vsidesof casing ll'and the Winding drums 14 and V15 are mounted on said shaftsoutside of said casing. Yhoisting cable 16 is partially Wound upon thedrums 14and 15, said cable being passed overvguide 'pulleys 17betweensaid drums so as to permit ot the free` travel of said hoistingcable trom one drum 'to the other. VAs will benoted, the hoistingcable16 is Wound on eaoh'ofthe' drums'14A and: 15 iii they same direction sothat rotation of either of said drums in the saine directionWillcausewinding "up of the' 'cable thereon, providing, of course, thatat the same time Athe other Vdrum is simultaneously released i forunwinding.

' Asbest shown in Fig. 3, the shafts 12 and 13 ,carryV drivingv gears 18meshing ywith rireris 119iY fired; te 2L-flriwire shaft 20 in. the eser,Gesine 11i? "A ehith' rrs'lilbr 2l splines. Qa the Sheff. 2Q- betwe'erithe rinors 19a es@ said. rimessi are, irfovrled im' their' inner; faceswith Cftcli'teeth, @arranged t0 engage the clllutcli A' The,clutchh'21`isoperatively connected uiith rocker arms 23 can. riad by@Ver .Gel Sh'ft24'iiu1tdin @asias 1l and. Grt-s thrsh" the fr "tlirefjfes.. best Sherri Fiss l and?, the .Sheftl24 Carries et its; upper end'e' rorker arm( 25. Connected; e link 26, with e! recher erin 27 011 a;Vertical rocher shaftQS'mountedat the,

forward @lid @if 'the @sulla Ylli- The' rbclr sliaft Carries e QIQSS arm29. the endSfOf-"r' I which er@ conneCteCl with the -IClS, a'GOltrolcable 30, said control cable being lthe usualA control' cable employedor'this pur- P'Ose'and 'whereby tpe rocker Sheff. 28 may be meltedeither manually Q1 eutmiticlly 'in' mensuel Way,

lt-Wrill he noted that the Operation Q the rocker Shaft 2S Will ill @UrnOperate the rocker shaft 24 and thus move the Clutch 2l into or out etengagement with the Clutch members 22 and there-by operate the gears1:8; to drive one 'ortbe other the Shets 12 or 13 and to release theother-,

AS best Shown irl Figs., '5 and. 6 the rocker shaft 28 carries ,a rocker310s which iS secured a double acting head 32 which is in ,substantiallyinverted. Yrform and 11er"- maily engages corresponding recess in' eVcani block 3.8 mounted-Orl rocker 'arms/34 secured to a transverserocker shaft 35. The rocker shaft ,35 carries at its Opposite endsrocker arms ,3 6 connected by links" 3; 7 with brake bands 3 8engaging-brake drums 39on 'the Winding drums 14 and 15,. By thisarrangement as the rocker shaft 28 shifts in either direction from itsnormal central position, the cam head 32 operating on the cam block 3,3,raises the rocker arms 34 to rock the rocker shaft 35 upwardly, thussimultaneously 'applying the brake f bands, 38 to the brake drums 39;Each-.of the brake bands 38 is anchored by a link 40 to a correspondingpost ofi abutment 41 on the frame 10 and the rocker shaft 35 is provided1with a depending rocker arm 42 connected'Withatension spring 43adjustably secured by a rod 44 `to a post or abut-ment 4'5 on the traine10. -By this' arrangement it will be observed that the brake bands 38will be normally held in operative engagement with the brake drums 39 bythe spring 43 but that upon rocking of the shaft 28 in either directionsaid brake bands will be released, thus freeing the correspondingwinding drums.

As best shown in Figs. 3 and 5, the driving shaft Carries a driving gear46 meshing with a pinion 4:7 on a shaft 4S carrying a driving` gear ai)on the outside of the casing ll. Driving gear 49 meshes with a drivingpinion 5() on the motor shaft 5l of electric motor 52. The motor 52 isoperated to keep the driving gear 46 and the shaft 2() constantlyrotating in the same direction but at relatively slower speed. lt willbe noted that by manipulating the cable to rock the shaft 2S in eitherdirection, the corresponding drum la or l5, as the ease may be, will beoperated to wind or retract the corresponding end of the hoisting cable16 and pay out the other end thereof, and that when said rocker shaft isshifted back to normal position the operation of both drums will ceaseand thecorresponding brake bands will be automatically applied to stopthe movement of the hoisting cable.

The hoisting cable 16 is passed over suitable guide pulleys andconnected with the usual elevator cages operating in the usual elevatorshafts in the usual way, and if desired, the said elevator cages arearranged to automatically operate the control cable 30 as will bereadily understood by those skilled in this art and is more fullydisclosed in our co-pending application.

The construction disclosed is a simple and efficient hoisting apparatusespecially adapted for use in building operations and the like. Thespecific form and arrangement of parts will be found to be an effectiveone for the purpose and one capable of economical manufacture andoperation.

lhile we have illustrated and described the preferred form ofconstruction for carrying our invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention. idle, therefore, do not wish to be limited to the precisedetails of construction set forth, but de:ire to avail ourselves of suchvariations and modifications as come within the scope of the appendedclaims.

Having described our invention, what we claim as new and desire tosecure by Letters Patent is:

l. A hoist comprising a gear easing; two shafts mounted in said casing,said casing being provided with bearings in its sides and said shaftsextending through said bearings and projecting from said casing; windingdrums on said shafts outside of said easing; a hoisting cable extendingbetween and wound upon said drums; gearing and clutch mechanism withinsaid casing for operating said winding drums; and a driving shaft withinsaid casing and cooperating with said gearing and clutch mechanism foroperating said winding shafts, substantially as described.

2. A hoist comprising a gear casing; two axially aligning winding shaftsmounted in said casing, there being bearings for said shafts in thesides of said easing and said shafts extending through said bearings andprojecting from the sides of said casing; winding drums on said shaftsoutside of said casing; a .driven shaft extendin through the side ofsaid casing; gears an clutch mechanism located within said casing andconnecting said ldriven with said winding shafts; means connected withsaid clutch mechanism and extending through a wall of said casing foroperating said clutch mechanism; and a hoisting cable eX- tendingbetween and partially wound on said drums, substantially as described.

3. A hoist comprising a gear casing; two axially aligning winding shaftsmounted in said easing and extending through the sides thereof; windingdrums on said shafts outside of said casing; driving gears on saidshafts within said casing; a driven shaft within said casing andcarrying gears meshing with said winding shaft gears; a clutch mechanismon said driven shaft for operating said winding shafts; a rocker shaftin said casing and projecting through a wall thereof and operativelyconnected with said clutch mechanism; and a hoisting cable extendingbetween and partially wound upon said drums, substantially as described.

t. A hoist comprising two axially aligning winding shafts; winding drumson said shafts; guide pulleys between said drums; a hoisting cablepartially wound on said drums and extending over said guide pulleys; adriving gear on each of said winding shafts; a driving shaft adjacentsaid winding shafts; driving pinions on said 4driving shaft meshing withthe driving gears on said winding shafts; clutch elements on the innersides of each of said driving pinions; a clutch member splined on saiddriving shaft between said driving pinions and arranged to be shiftedinto and out of engagement with the clutch elements thereon; an electricmotor; a. reducing gear connection between said electric motor and saiddriving shaft; a rocker shaft arranged adjacent sai-d shiftable clutchmember and operatively connected therewith; a second rocker shaftoperatively connected with said first rocker shaft; a cross arm securedto said second rocker shaft; an operating cable secured to the ends ofsaid cross arm; a rocker arm on said second rocker shaft; a V-shaped camhead on said last mentioned rocker arm; a cam block having a cam recessfitting said cam head; a rocker arm secured to said cam block and to abra-ke rocker shaft; a brake drum secured to each of said winding drums;ranged to hold said brake bands normally a brake band for each of saidbrake drums; engaging said brake drums, substantially 10 an. operativeconnection between each of as described.

said brake bands and said brake shaft, In testimony whereof We havesigned our whereby operation of said brake shaft'reb names to thisspeeioaton.

leases both of said brakes; a rocker arm on l said brake shaft; and alspring connected SWEN BERGLING. with said brake shaft rocker arm and aI-KARL ANDERSON.

